Electric switch.



A. JAOOBSON.

ELECTRIC SWITCH. APPLICATION FILED 1120.4, 1911.

1,030,185. Patented June 18, 1912.

ELEGTBC LSSSS.

replication Recor-.uber e, ESM..

To all whom it may concern-f Be it known that I, ABRAM JAooBsoN, acitizen of the United States, residing at Lanesville, in the county ofEssex and State of llisssechnsetts, have invented certain new and usefulimprovements in lectric Switches; and l do hereby declare the tot lowingto be a full, clear, and exact descrip tion of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the seme.

This invention relates to switches, and has for its object to constructs switch which will permit. a new set o bitteries to be switched intovthe circuit, namely, the circuit in connection with the internalcoinbustion engines, without previously remov ing the old or wor v,batteries vfrom the circuit.

lt is a further object of the present invention to provide a meanswhereby the circuit may be changed from the magneto to the batteries,and vice versa witlioutcausing s miss in the lire ot the' engine duringthe change.

lvl/"ith the above and other objects in view, this invention consists inthe. construct-ion, combination and arravn'ement of parts, all ashereinafter more fully described, claimed. and illustrated in theaccompanying drawings, wherein: i

Figure l is aperspective view of a switch. constructed in accorda-ncewith the present invention; and Fig. 2 is a transverse section takenalong line 2-2 ot Fig. l.

The switch forming the subject metter ofA the present inventioncomprises a plate of insulating material provided st each con ner witho. spring or other suitable contact` member. A pair ot switch contactmembers are centrally provi for the plete, each contact member lia-vingrigidly secured thereto n horizontal bar. rlhe corresponding end ofthesehoriZont-il bars here a. switch pivotally connected thereto, aswill hereinafter be more nlly described.

Reference being more particularly to the drawings, 10 indicates eninsulating plate of any suitable non-conductive material, said platehaving et the transverse terminals thereof the Contact fingers ll andlla, one set of contact fingers il leading to either the magneto (notshown) or a new set et batteries, while the contact members 11a ereconnected to the wires leading'y 'to the original set of batteries.

Speccetion ot Letters letent,

i Centrally disgosed with respect to the alined contact members 1l andlla, on each longitudinal side of the plate 10, is a central contactmember l2. These Contact members are connected with wires which lead tothe spark glug oit the internal combustion engine in any suitable way.Each contact `member `l?, has rigidly secured therein o. bar l which.has its terminals 13a and 123b odset inwardly, as illustrated in Fig. l,A switch ifi piroted to the terminals il of the bers 13 through theinstrumentality'ot the arms le ci' seid switch, and is ot such construc-.tion that said arms ere 'adapted' to engage the Contact members l1.similar switch l'is pivotslly connected to the terminals 13a of the ber13 through the medium oil the arms ia of said switch, said arms adaptedto be engaged by the contact members lla. F rom the foregoing it willclearly be seen that when the elements of the device are in thepositions ns illustrated in Fig. l, the current dows 'from the originalset or" bettories (not shown) to the contact posts or members il throughthe arms 15a, through the terminals 13a oi' the bars 13 and contactmembers l2, and thence to the ignition device or" the engine. lWhen itis desired to change from the originel set of batteries to the magnetoor to a new set of batteries when the originel set becomes' useless, theswitch le is moved downwardly until the ernis le@ thereof engagethecontact members ll. rlfhis movement is mede previous to the removal ofthe switch l5 from engage ment with the contact members lla. Thus, whenthe Snitch le is engaged by the contact members lla the current will{iowfrom said contact members,- to the arms ist ot said switch, theterminals 13b of the Contact members l2 and thence to the ignition de-Vice of the enffine not shown. it will clearly be vunderstood that bythe provision of this dcnble switch it is impossible 'for the engine tomiss tire while transferring from one series of electrical supply toanother, as is the case when a single switch is used.

Having thus fully described my invention, what l claim ss new, anddesire to secure oy il. S. Letters Patent, is:v

in a switch, the combination with a base constructed ci insulatingmateria-l, contact l members located centre-ily and adjacent to theloncitudinsl sides ot seid base. bor car- Iried by each central contact'member sobi stentielly parallel to the longitudinal sides set terminalsof said bars, each switch adaptof lsaid base having the terminalstheieot l ed to oopeiate with one paiid of ooi'ner con- Oifset inwardly,a Contact post located acltact posts.

jacent to each corner of said base, each pair In testimony whereof Iaiilx my signature thereof along the longitudinal sides of the inpresence of two Witnesses.

base being in direct alineinent with one ot' ABRAM JCOBSON, the CentralContact members, and indepenclently operating switches carried by theoffibn s:

lV t esse JOHN E. PETERSON, IDA M. PETERSON.

Sopes of this patent may be obtained for ve cents each, by addressingthe Commissioner o atents, Washington, D. O.

